Can't connect to wireless on Ubuntu Server
Solution 1
The following should work:
/etc/network/interfaces
file:
auto wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
/etc/wpa_supplicant/wpa_supplicant.conf
file:
network={
ssid="turkradio"
psk=ENCRYPTED_KEY
}
You get the encrypted key using the wpa_passphrase
command:
wpa_passphrase turkradio key
Then to restart the networking(leave out the sudo if you are root):
sudo /etc/init.d/networking restart
Solution 2
Try using Wifi-Radar to see if it can scan your SSID and connect. You can install it with:
sudo apt-get install wifi-radar
It should be able to help you troubleshoot problems. You might have your key wrong or something else.
Solution 3
Looking at the output from iwconfig
there is no SSID set.
I had the same problem as you and noticed the SSID not being set on my own machine. I set this using iwconfig wlan0 essid "xxxxxxxxx"
and it immediately popped into action.
The SSID is set in the interfaces file but obviously it's not being read or retained. I now have to figure out how to configure it so that it 'sticks'. :-(
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Comments
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Ethan Turkeltaub over 1 year
I'm having some trouble connecting to a wireless network on Ubuntu Server 12.10. I have the driver installed with
ndiswrapper
, I can scan withiwlist wlan0 scan
, and I'm trying to usewpa_supplicant
to configure the interface. However,iwconfig
is showing that I'm not connected to an access point.
/etc/network/interfaces
# Wireless interface auto wlan0 iface wlan0 inet dhcp wpa-driver ndiswrapper wpa-ssid "turkradio" wpa-ap-scan 2 wpa-proto RSN wpa-pairwise CCMP wpa-group CCMP wpa-key-mgmt WPA-PSK wpa-psk KEY-FROM-WPA-PASSPHRASE
/etc/wpa_supplicant.conf
#ctrl_interface=/var/run/wpa_supplicant ap_scan=2 network={ ssid="turkradio" scan_ssid=1 proto=RSN key_mgmt=WPA-PSK group=TKIP pairwise=TKIP #psk="KEY" psk=ENCRYPTED_KEY }
ifconfig
wlan0 Link encap:Ethernet HWaddr 08:86:3b:8a:d5:a5 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
iwconfig
wlan0 IEEE 802.11g ESSID:off/any Mode:Managed Frequency:2.442 GHz Access Point: Not-Associated Bit Rate:54 Mb/s Tx-Power:20 dBm Sensitivity=0/3 RTS thr:off Fragment thr:off Power Management:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0
How can I correctly configure my interface?
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Admin over 11 yearsHave you tried to run
wpa_supplicant
in a terminal? (lieke
wpa_supplicant -c /etc/wpa_supplicant/wpa_supplicant.conf -i wlan0 -D ndiswrapper`)
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